The answer is D. The rainforest is important to life as a whole on the planet.
It’s like an oval so round I should say
I think that the question asks about the time of the War in Bosnia and other parts of Yugoslavia in the first part of the 90s. The Serbian soldiers that committed mass murder of Bosnian population, mostly men, referred to this as "ethnic cleansing" which sounded better than "genocide"
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The answer is recharged by precipitation